Forest and Rangeland Ecosystem Science Center (FRESC)

Multimedia

Filter Total Items: 168
three scientists preparing to conduct an underwater biological survey
August 2, 2016

Preparing for underwater biological surveys of the Bogachiel River

Three USGS scientists prepare to conduct underwater biological surveys of the Bogachiel River, Washington

Sampling for Bsal
August 1, 2016

Sampling for Bsal

Scientists sample a rough-skinned newt for the fungal pathogen Batrachochytrium salamandrivorans, or Bsal, at a pond near Portland, Oregon. Bsal is decimating wild salamander populations in Europe and could emerge in the U.S. through the captive amphibian trade.

Bumble bee on Scarlet Globemallow
July 3, 2016

Bumble bee on Scarlet Globemallow

To investigate whether insects could be used as bioindicators of climate change, USGS researchers studied insect community composition along an elevation gradient in semi-arid shrublands of eastern Oregon. Overall, their analyses showed that insect communities respond to weather and local vegetation more than to long-term climate, suggesting that interannual variation in

...
NPS/USGS remote den camera. Fisher family denning in a mountain beaver burrow.
May 6, 2016

NPS/USGS remote den camera. Fisher family denning in a mountain beaver burrow.

NPS/USGS remote den camera. Fisher family denning in a mountain beaver burrow. Look carefully! Two fisher kits in front of their den site in a mountain beaver burrow (foreground) with mom (background left) watching on. The kits are about 4-5 months old.

pen tip next to lichen
April 27, 2016

Close-up of biocrust - lichen

Biological soil crusts, or biocrusts, are lichens, mosses, and cyanobacteria that grow on the soil surface and are common in the spaces between native plants in arid and semi-arid systems. Biocrusts reduce soil erosion, contribute to nutrient and water cycling, and reduce evaporation and invasion by exotic plants. The green-red plants with flower bud stalks are likely

...
selfie of USGS scientists
April 27, 2016

FRESC 2016 SageSTEP field crew selfie

The 2016 SageSTEP field crew.  They are collecting vegetation monitoring data at SageSTEP's (Sagebrush Steppe Treatment Evaluation Project) Moses Coulee site.  SageSTEP is a regional experiment evaluating methods of sagebrush steppe restoration in the Great Basin. Sagebrush communities have been identified as one of the most threatened land types in North America, and as

...
Image: Measuring a Frog in the Cascades
March 15, 2016

Measuring a Frog in the Cascades

USGS researchers Brome McCreary (orange vest) and Chris Pearl take measurements on Cascades frog at a mountain lake in Oregon.

February 8, 2016

Evidence of Absence

This is a recorded presentation describing a statistical software package called "Evidence of Absence" that can be used to provide evidence of compliance with incidental take permits. It will be useful to wildlife managers and wind energy operators to estimate, with reasonable certainty, that a certain number of birds or bats have been killed at wind energy facilities,

...
two ARMI field tech display discarded mylar balloons
October 29, 2015

Discarded mylar balloons on display

Anna Ormiston and Jesi Hessong, student contractors with the USGS Amphibian Research and Monitoring Initiative, or ARMI, display several discarded mylar balloon collected by field teams working in and around the Capital Region National Parks in the summer of 2015. They collected a total of 71 balloons.

Barred owl perched on a tree branch
September 3, 2015

Barred owl (Strix varia)

Barred owls (Strix varia) have expanded their geographic range from eastern to western North America. Their newly expanded range now completely overlaps that of the federally threatened northern spotted owl (S. occidentalis caurina).

Sagebrush, grasses, and forbs in a shrub-steppe ecosystem
August 28, 2015

Sagebrush, grasses, and forbs in a shrub-steppe ecosystem

Determining aboveground biomass of sagebrush, grasses, and forbs is important for estimating fuel loads, measuring carbon storage, and assessing habitat quality in shrublands. Remote sensing may offer a more efficient alternative to common, labor intensive methods of measuring aboveground biomass that are difficult to apply across large areas. Researchers from the USGS are

...
Vegetation monitoring in the area burned by the Soda Fire, 2015
August 28, 2015

Vegetation monitoring in the area burned by the Soda Fire, 2015

USGS scientists monitor BLM efforts to restore vegetation in the area burned byt he 2015 Soda Fire in southwest Idaho and southeast Oregon sagebrush-steppe.